| cdata.ex | Clustered dataset for centering example | 
| engage | Student engagement dataset (complete data). | 
| engage.miss | Student engagement dataset (with missing data). | 
| glance.CR2 | Glance at goodness-of-fit statistics | 
| group_center | Group-mean center a variable | 
| group_mean | Computes the group mean of a variable | 
| hdp | Hospital, doctor, patient (hdp) dataset | 
| Htest | Test for homoskedasticity at level one | 
| lrtPV | Likelihood Ratio Test with Model Results Using Plausible Values | 
| MatSqrtInverse | Compute the inverse square root of a matrix | 
| mixPV | Fit Weighted Multilevel Models Using Plausible Values | 
| nmiss | Amount of missing data per variable | 
| pisa2012 | USA data from PISA 2012 | 
| pool_pv | Pool plausible values using Rubin's rules | 
| ri_test1 | Sample dataset 1 for testing the likelihood ratio test | 
| ri_test2 | Sample dataset 2 for testing the likelihood ratio test (LRT) | 
| robust_mixed | Cluster robust standard errors with degrees of freedom adjustments for lmerMod/lme objects | 
| satdf | Compute Satterthwaite degrees of freedom | 
| sch29 | Data from 29 schools (based on the NELS dataset) used for regression diagnostics | 
| summary.mixPV | Create summary output from the mixPV function | 
| summary_all | Use the summary function on a saved list of mixPV results | 
| suspend | Suspension data from Virginia | 
| thai | Thai data from PISA | 
| thai.sm | Thai data from PISA (reduced) | 
| tidy.CR2 | Tidy a CR2 object | 
| tidy.mixPV | Helper function to allow use with modelsummary | 
| wide | Wide dataset to be used for growth modeling | 
| wscale | Scale of Sampling Weights |